Tool
Payments-on-account calculator
If last year's Self Assessment bill was over £1,000, you usually pay the next year's tax in two advance payments. Estimate what yours would be.
£
Income tax plus Class 4 National Insurance from your last return.
£
Payments on account are advance payments towards the following tax year, each normally half of the previous year's bill.
Enter last year's bill to see your estimate.
What this includes
- The £1,000 threshold that triggers payments on account
- Two payments of 50% each, due 31 January and 31 July
- The 80% at-source rule, for example tax collected through PAYE
- The balancing payment due with your January return
What this does not include
- Claims to reduce payments on account and any interest on shortfalls
- Class 2 National Insurance
- Capital gains and other charges outside the bill
- Late payment interest and penalties
This tool is illustrative only and is not tax advice. Your circumstances may change the result. Check current figures on GOV.UK, and see our Tax Tables for the full detail.
Know the estimate. Change the outcome.
MyTaxFiling turns this estimate into a live picture, updating as you record income and expenses through the year.